#10804: Wrong packet/frame duration in some H264 video
-------------------------------------+-------------------------------------
Reporter: Laura Crema | Type: defect
Status: new | Priority: normal
Component: | Version: 6.1
undetermined |
Keywords: h264 | Blocked By:
pkt_duration |
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug:
Respect v. 4.3, in version 6.1 I got a wrong packet duration in some H264
video. It happens only on some files,
How to reproduce:
{{{
% ffprobe.exe -show_frames -select_streams 0 test.mp4
ffprobe version N-112960-g96f646cdc2-20231212 Copyright (c) 2007-2023 the
FFmpeg developers
built with gcc 13.2.0 (crosstool-NG 1.25.0.232_c175b21)
configuration: --prefix=/ffbuild/prefix --pkg-config-flags=--static --pkg-
config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64
--target-os=mingw32 --enable-gpl --enable-version3 --disable-debug
--enable-shared --disable-static --disable-w32threads --enable-pthreads
--enable-iconv --enable-libxml2 --enable-zlib --enable-libfreetype
--enable-libfribidi --enable-gmp --enable-lzma --enable-fontconfig
--enable-libharfbuzz --enable-libvorbis --enable-opencl --disable-libpulse
--enable-libvmaf --disable-libxcb --disable-xlib --enable-amf --enable-
libaom --enable-libaribb24 --enable-avisynth --enable-chromaprint
--enable-libdav1d --enable-libdavs2 --disable-libfdk-aac --enable-
ffnvcodec --enable-cuda-llvm --enable-frei0r --enable-libgme --enable-
libkvazaar --enable-libaribcaption --enable-libass --enable-libbluray
--enable-libjxl --enable-libmp3lame --enable-libopus --enable-librist
--enable-libssh --enable-libtheora --enable-libvpx --enable-libwebp
--enable-lv2 --enable-libvpl --enable-openal --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg
--enable-libopenmpt --enable-librav1e --enable-librubberband --enable-
schannel --enable-sdl2 --enable-libsoxr --enable-libsrt --enable-libsvtav1
--enable-libtwolame --enable-libuavs3d --disable-libdrm --enable-vaapi
--enable-libvidstab --enable-vulkan --enable-libshaderc --enable-
libplacebo --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-
libxvid --enable-libzimg --enable-libzvbi --extra-
cflags=-DLIBTWOLAME_STATIC --extra-cxxflags= --extra-ldflags=-pthread
--extra-ldexeflags= --extra-libs=-lgomp --extra-version=20231212
libavutil 58. 32.100 / 58. 32.100
libavcodec 60. 35.100 / 60. 35.100
libavformat 60. 18.100 / 60. 18.100
libavdevice 60. 4.100 / 60. 4.100
libavfilter 9. 14.100 / 9. 14.100
libswscale 7. 6.100 / 7. 6.100
libswresample 4. 13.100 / 4. 13.100
libpostproc 57. 4.100 / 57. 4.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
'Z:\VIDEO\PAL\ONLINE\JanaTolqyn_BG_Koktem_2_03.03.2023.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: mp42mp41
creation_time : 2023-03-03T05:46:03.000000Z
Duration: 00:00:10.00, start: 0.000000, bitrate: 15900 kb/s
Stream #0:0[0x1](eng): Video: h264 (High) (avc1 / 0x31637661),
yuv420p(tv, bt709), 1920x1080, 15532 kb/s, 25 fps, 25 tbr, 25k tbn
(default)
Metadata:
creation_time : 2023-03-03T05:46:03.000000Z
handler_name : ?Mainconcept Video Media Handler
vendor_id : [0][0][0][0]
encoder : AVC Coding
Stream #0:1[0x2](eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz,
stereo, fltp, 317 kb/s (default)
Metadata:
creation_time : 2023-03-03T05:46:03.000000Z
handler_name : #Mainconcept MP4 Sound Media Handler
vendor_id : [0][0][0][0]
}}}
This is the result:
{{{
[FRAME]
media_type=video
stream_index=0
key_frame=1
pts=0
pts_time=0.000000
pkt_dts=0
pkt_dts_time=0.000000
best_effort_timestamp=0
best_effort_timestamp_time=0.000000
pkt_duration=500
pkt_duration_time=0.020000
duration=500
duration_time=0.020000
pkt_pos=61496
pkt_size=259128
width=1920
height=1080
...
[/FRAME]
[FRAME]
media_type=video
stream_index=0
key_frame=0
pts=1000
pts_time=0.040000
pkt_dts=1000
pkt_dts_time=0.040000
best_effort_timestamp=1000
best_effort_timestamp_time=0.040000
pkt_duration=500
pkt_duration_time=0.020000
duration=500
duration_time=0.020000
pkt_pos=493193
pkt_size=39086
width=1920
height=1080
...
[/FRAME]
[FRAME]
media_type=video
stream_index=0
key_frame=0
pts=2000
pts_time=0.080000
pkt_dts=2000
pkt_dts_time=0.080000
best_effort_timestamp=2000
best_effort_timestamp_time=0.080000
pkt_duration=500
pkt_duration_time=0.020000
duration=500
duration_time=0.020000
pkt_pos=532279
pkt_size=41132
width=1920
height=1080
...
[/FRAME]
....
}}}
pkt_duration and duration should be 1000 (as with version 4.3), instead I
got 500
--
Ticket URL: <https://trac.ffmpeg.org/ticket/10804>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
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